[Intel-gfx] v3.12 does not work on ByT-I

[Artem Bityutskiy]

Thanks Jesse for you answer, but it brought more questions.

On Thu, 2013-11-07 at 08:04 -0800, Jesse Barnes wrote:
> Hm, I wonder if this bug is also related to the backlight stuff Jani
> recently pushed fixes for.

OK.

>   It looks like you have an eDP panel here,

No, we do not have it at all.

> but if for some reason it got bounced between two CRTCs due to bad
> detection on one, it could cause a blank screen issue.

OK, not sure I understand what you mean, but yes, blank screen is
something which we observe without your patch.

> 
> commit 07bf139b906013ecef0c5e0441564d1ae10e974a
> Author: Jesse Barnes <jbarnes at virtuousgeek.org>
> Date:   Thu Oct 31 18:55:50 2013 +0200
> 
>     drm/i915/vlv: use per-pipe backlight controls v2
> 
> commit 752aa88a1e784c22d514db3b440e49427b58259e
> Author: Jesse Barnes <jbarnes at virtuousgeek.org>
> Date:   Thu Oct 31 18:55:49 2013 +0200
> 
>     drm/i915: make backlight functions take a connector
> 
> 
> commit 91a60f20712179e56b7a6c3d332a5f6f9a54aa11
> Author: Jani Nikula <jani.nikula at intel.com>
> Date:   Thu Oct 31 18:55:48 2013 +0200
> 
>     drm/i915: move opregion asle request handling to a work queue
> 
> are the relevant commits.

Do you think I should try cherry-picking this to 3.12 and test if they
help? Or this is more about "for your reference"?

Many thanks!

-- 
Best Regards,
Artem Bityutskiy